Intel Celeron J3355 dual-core 2.0GHz (up to 2.5GHz), 4GB DDR3L SODIMM RAM (1x4GB, 2 DIMM slots, max 8GB total) SATA 6Gb/s, 1xGbE, PCIe slot for 10GbE/M.2 SSD with QM2 expansion card, built-in speaker, 2x 3.5mm MIC In, 1x Line out The PCIe port supports installing a 10GbE network card, a QM2 dual-port M.2 SSD/10GbE card, a USB 3.1 Gen 2 (10Gbps) card, or a wireless network card 4K media playback and online transcoding; cross-device multimedia viewing via HDMI output or streaming applications Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore the previously-recorded data S-251B